If that was your first MCAT attempt and you are in your early 20's, I would say take a test prep class and study again and retake MCAT. Also consider doing some science classes to drag up your GPA. You would have a shot at US DO schools I think. That would be 1000% better than attending a Caribbean school. There are DO's here and there all over my academic university hospital. There is 1 Ross grad and no other Carib grads. I went to a US MD school and that's by far the easiest route to residency, but DO is OK too, particularly if you do well in DO school. If you don't, but do graduate, you'll still get residency. If you do so/so at a Carib school you may be toast, and even if you do great you'll probably end up in a residency that works you very hard, perhaps in a specialty you didn't want, and perhaps without sufficient attention to training you (as opposed to just using you to do work as a resident, such as pushing papers and staying up late late late at night on call doing busywork).
The tortoise not the hare wins the med school race.